John, rick, and molli can paint a room working together in 6 hours. alone, john can paint the room in 12 hours. if rick works alone, he can paint the room in 15 hours. write an equation comparing the group rate to the sum of the individual rates. then find how long it will take molli to paint the room if working alone. a.) what is the equation? b.) what is the lowest common denominator for the equation in part a? c.) show all work below in solving the equation from part a. d.) how many hours would it take molli to paint the room if she worked by herself?i really need on this.

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)